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JPH067065Y2 |
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JPH0641959A |
PURPOSE: To improve withdrawing efficiency by fittedly inserting the tip of a screw blade attached to the tip of an auger shaft into the hollow hole of a concrete pile, and rotating and lowering it, and applying centrifugal pressing forc...
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JPH0610368B2 |
The invention relates to a turning mechanism for driving in or extracting piles by means of tangential rotary blows being imparted by a rocker arm equipped with balance weights and arranged in a rotary manner relative to the pile. In ord...
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JPH068488U |
[Purpose] The purpose is to make the movement of the excavator easy and safe. [Constitution] The excavator main body 3, the casters 4 arranged at a plurality of places under the excavator main body, the stay 5 to which the casters are at...
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JPH063907Y2 |
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JPH066863B2 |
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JPH061669Y2 |
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JPH061035B2 |
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JPH0547819Y2 |
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JPH05321554A |
PURPOSE: To make a straight horizontal hole in orderly manner by deviating to center of a drilling bit from the center of a sleeve pipe and rotating a rotary shaft supported rotatively in the sleeve pipe and shielding forward. CONSTITUTI...
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JPH0589589U |
[Purpose] The purpose is to make the movement of the excavator easy and safe. [Constitution] In an excavator having an excavator main body equipped with a spindle that grips the excavation rod and pushes the excavation rod into the excav...
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JPH0583714B2 |
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JPH05287975A |
PURPOSE: To simplify the equipment and increase the workability, by forcing the joint of a kelly rod sub and a hammer and also the joint of a kelly rod sub and a kelly rod to face to each other. CONSTITUTION: Female joints 149, 149 are f...
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JPH05280053A |
PURPOSE: To construct an excavation shaft penetrating device small and light while torque concentration on any particular shaft is avoided. CONSTITUTION: With excavation shafts 11-15, excavating motors 31-35 are coupled to drive them ind...
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JPH05272286A |
PURPOSE: To supply a large number of drilling shafts in a simultaneous and stabilized manner and embody extension penetration, avoiding an increase in the weight and size of a shaft penetration device. CONSTITUTION: There is provided a s...
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JPH0563597B2 |
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JPH0564286U |
[Purpose] Regarding the submarine excavator that excavates the sedimentary layer of the seabed in a columnar shape, especially the submarine excavator that simplifies the excavation mechanism and aims to reduce the overall size. [Constit...
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JPH0533593Y2 |
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JPH05209487A |
PURPOSE: To smoothly excavate the ground by clearly removing soil in a casing tube as well as greatly reducing noise and vibration during the excavation of the underground. CONSTITUTION: While injecting a soil-gelling agent through a tub...
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JPH0561288U |
[Purpose] When disassembling and assembling the leader mast with the boom down, if the leader mast is heavier than the standard, the trailer etc. is caught by the crane at the rear of the car body to prevent the car body from tilting for...
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JPH05195681A |
PURPOSE: To obtain a mobile boring device in which an erection device is simple and a mast can be extended. CONSTITUTION: A mast 20 of a boring device is supported by an erection hinge 18 that is fitted onto a vehicle 10. The erection bi...
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JPH05195680A |
PURPOSE: To efficiently perform deep boring by providing a girder above a vertical shaft, providing a rod rotating/driving device and a work station at the bottom section, and providing the stock device of a lengthy rod in the vertical s...
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JPH05187176A |
PURPOSE: To improve the function by providing opening/closing moving excavating edges at the lower end of a rotary cylinder for excavation and soil discharge, and arranging earth retaining outer frames on the outer periphery of the cylin...
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JPH0529273Y2 |
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JPH0526148Y2 |
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JPH0526149Y2 |
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JPH0521592Y2 |
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JPH0521591Y2 |
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JPH0536595B2 |
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JPH0534473B2 |
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JPH0519428Y2 |
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JPH0519431Y2 |
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JPH0519429Y2 |
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JPH0519430Y2 |
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JPH0532552B2 |
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JPH05118185A |
PURPOSE: To prolong the service life of a cutter bit, and achieve the promotion of miniaturization and robotization of a excavator as well as to increase a drilling rate yet speedier. CONSTITUTION: A laser beam is applied to a rock bed i...
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JPH05118937A |
PURPOSE:To obtain a torque measuring device of a boring machine or the like for intermittently measuring the rotary torque of a main shaft to be driven by a hydraulic motor. CONSTITUTION:A torque measuring device consists of a hydraulic ...
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JPH0516292Y2 |
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JPH05106385A |
PURPOSE: To facilitate movement by providing a driving means vertically movable while fitted to a conveying means, an excavating means connected to the output shaft of the driving means, and a guiding means restricting the horizontal mov...
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JPH0527752B2 |
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JPH0527751B2 |
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JPH0598879A |
PURPOSE: To facilitate the connection and disconnection of a piece block without using welding by fitting a plurality of piece blocks so as to cover both side walls of respective square grooves. CONSTITUTION: The inner and outer circumfe...
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JPH0513829Y2 |
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JPH0513830Y2 |
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JPH057352Y2 |
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JPH0510592U |
(57) [Summary] [Purpose] The present invention is used when there is an obstacle on the ground of the place where the pipe is to be piped, or when the work is difficult due to hills, stairs, narrow space, etc. Therefore, the purpose is t...
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JPH059598B2 |
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JPH052078B2 |
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JPH052079B2 |
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JPH051359B2 |
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